Use hook-and-loop tape to attach five-inch lengths of 2-in. PVC pipe to the ... Use a saber saw to cut lengthwise notches in ...

4-inch PVC end cap. 4-inch PVC fitting adapter. 4-inch PVC coupling pipe. 4-inch x 24-inch PVC pipe. This is the combustion chamber. 4-inch to 2-inch PVC reducer. 2-inch x 48-inch PVC pipe.

3 1/2-inch-diameter PVC end cap, qty. 1. Container each, PVC primer and cement, qty. 1. Can spray paint, qty. 1. 2 Step 1. Media Platforms Design Team.

Cut a 4-inch-diameter PVC pipe as long as the bucket is high; set the pipe into the end cap. Use a 4-inch-to-2-inch bushing to reduce the PVC pipe, then reduce it further using a 2-inch-to-1-inch ...

Cut or drill a larger, 1¾-inch hole in the other 2-inch cap; this will be your piston guide. Glue: Assemble the piston by applying PVC glue [7] to one end of the 2-inch pipe you sawed off in step ...